https://blog.acolyer.org/2016/05/20/the-landscape-of-domain-n... Bitsquatting relies on random bit errors to redirect connections intended for popular domains.
To test this theory, Dinaburg conducted an experiment and registered 30 bitsquatted versions of popular domains (e.g. www.mic2osoft.com) and logged all HTTP requests. Much to his surprise, there were a total of 52,317 bitsquat requests from 12,949 unique IP addresses over an eight-month period. (via https://blog.acolyer.org/)